Mold-closing apparatus for an injection-molding machine
US5811141A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 19, 1996 |
| Grant date | Sep 22, 1998 |
| Priority date | — |
| Expiry date | Aug 19, 2016 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29C2049/5634
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
An injection molding machine has a pair of C-shaped tension members interconnecting the fixed bracing plates at location above the axis of force action in the mold closing and injection operations. The mold closing unit is mounted on one of these plates and a mold part on the other plate while the mold closing unit acts on the movable mold part. According to the invention, the fixed plates are also interconnected by lower tension members which can be C-shaped or can be tension rods so that access to the space between the mold parts remains available, the upper and lower tension members being matched as to elongation under the generation of the mold closing and injection forces.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.